Engineering (General) Expert Witnesses: 106

Chet  Sandberg, P.E. received a BS in Mechanical Engineering from MIT and a MS in Electrical Engineering from Stanford. He is a professional engineer in the state of California and an IEEE Fellow.

Background Experience - Litigation Support - Mr. Sandberg is an Expert Lithium Ion Battery  and Heat Transfer Expert with successful litigation in Lithium Ion Battery Failure.  He has court room experience, including testifying before the ITC in Washington DC. Mr. Sandberg is available to attorneys for both plaintiff and defendant. Mr. Sandberg joined the Chemelex Division of Raychem Corporation where he managed technology projects for 30 years. He held various positions at Raychem culminating as Chief Engineer.

For the next 6 years, Mr. Sandberg managed the development of a downhole, self-regulating electrical heater technology for Shell Oil. In 2009, he founded C L Sandberg & Associates, a consultancy specializing in Energy Projects, including managing customer engineering for Altairnano, a lithium ion battery manufacturer.

Mr. Sandberg has been associated with Electrical Energy Storage at EPRI, ESA, Sandia, and PNNL, as well as providing due diligence expertise for venture capital and private equity companies on their technical prospective investments. He has been granted 30 United States Patents and has authored over 70 technical papers on energy usage, electric heat tracing, ground fault technology, fiber optics, sensor technology, and personal computers as design tools. 

 Areas of Expertise:

Lithium Ion Battery testing and failure analysis Novel Battery Technology Energy Storage Electrical Ground Fault Protection Powerline Carrier Technology Heat Transfer Backup Power Supply Oil Field Heating and Instrumentation Engineering Safety Requirements in Nuclear Power Generation

Hazardous Safety of Explosive Gases Process Control Software Instrumentation Hardware Fiber Optic Data Transmission Fiber Optic Sensors Heat Tracing Economic Analysis of Energy Usage

Gregory J. Cahanin, CP works in the Fire Protection Engineering field. Over 40 years of experience in the application of sound engineering principles work to produce results in litigation cases. He is nationally recognized as a Life Safety and Fire Protection expert. He performs fire origin and cause, fire alarm, fire sprinkler, kitchen suppression, fire wall and compartmentation failures, and slip and fall forensic investigations.

Gregory J. Cahanin Fire & Code Consulting has been based in St. Petersburg, FL for over 25 years.

Background - Mr. Cahanin served as a Senior Life Safety Engineer with the National Fire Protection Association (NFPA), the organization that writes Fire Protection Codes and Standards. He was staff liaison for building construction standards and the Fire Prevention Code. Special project work included support of the International Division of NFPA in a survey of fire protection for all oil production facilities of LaGoven SA in Venezuela; an evaluation of the existing airport terminal in Rio De Janeiro, Brazil; and a code comparison study for the National Institute of Building Sciences. Mr. Cahanin investigated multiple fatality fires for NFPA and his reports are nationally published and peer reviewed. Mr. Cahanin holds Professional Grade Membership in the Society of Fire Protection Engineers. Mr. Cahanin has earned three undergraduate degrees in Fire Science and Fire Protection and a Master in Public Administration.

Litigation Support - Mr. Cahanin regularly testifies in fire cases offering opinions on the origin and cause of fires in addition to component failures in construction, fire sprinkler systems, kitchen suppression systems and product failures. He is nationally published on fire protection requirements in the building code as a contributing editor on the 2006 edition of the International Building Code (IBC) Commentary where he edited the sections on fire-resistance rated construction. He currently serves on code committees with both the NFPA and ICC. Mr. Cahanin holds a NALA paralegal certification and is well versed in Civil Procedure, interrogatory, expert report writing, and trial procedures. 

Mr. Cahanin meets the professional qualifications of NFPA 1033, Standard for Professional Qualifications for Fire Investigator as documented in a Florida Declaratory Statement held by no other fire expert in the state of Florida. Investigations of note include the Warwick. R.I. Station Nightclub Fire in 2003 with 100 fatalities. In Wyatt v. Security Alarms Co., Inc. key testimony on the failure of a Viking automatic fire sprinkler established a product liability that resulted in a $1.4M dollar jury award for Wyatt in Oklahoma. Mr. Cahanin's services are available to plaintiff and defendant attorneys. Case work can include site investigation, materials testing, thorough reporting, depositions, and trial testimony.

Areas of Expertise:

Fire Origin and Cause Determination Kitchen Fire Suppression Systems Fire Hazard Analysis Fire Sprinklers Fire-based Construction Defects CPVC Sprinkler Pipe Failure

Fire Walls and Compartmentation Life Safety Egress & Compliance Fire & Building Code Compliance Explosion Analysis and Cause Fire Alarm Failures Walking Surface Slip Trip & Fall

View Cahanin Fire & Code's Consulting Profile.

James Caylor, PE, is an independent consulting Mechanical Engineer specializing in NH₃ and CO₂ Refrigeration Systems used in process and cold storage applications. Clients have included Leprino  Foods, Safeway, Dreyer’s, Tyson, ConAgra, Unilever, Nestlé, Imperial Irrigation District, Lineage Logistics, and Grupo Kuo (Kekén).

Background Information - Mr. Caylor's first 15 years in the refrigeration business were spent as a service and startup technician, including a UA steamfitter apprenticeship, 11 years in the industrial field and the final 8 years self-employed as Caylor Refrigeration. He then returned to college and graduated from Arizona State University in 2000 with a BSME. 

Mr. Caylor worked as a project engineer for two design/build contractors and became a PE before moving to Tyson Foods’ corporate design group in 2005. He joined Jacobs Engineering’s Food and Beverage Group in Fort Worth in 2007, finished in 2013 as Deputy Director in charge of all refrigeration projects and opened his own consulting firm in 2014.

Litigation Support - Mr. Caylor has been retained in seven expert witness cases, including one completed and two more scheduled  depositions. Two of these are currently preparing for trial and one for arbitration. Disputes tend to fall into one of three categories:  

Component Function - System Design / Installation/ Operation - Regulatory Compliance

Mr. Caylor has also consulted for lawyers representing a food processing firm facing EPA citations at multiple plants. His forensic analysis services are available to attorneys representing plaintiff and defendant and include site review, thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise:

System Design and Design Review (owner’s agent) Mechanical Code Review (IIAR, IFC/IMC, ASME B31.5, ASHRAE Std 15) Operational analysis Industrial Process Refrigeration Cold Storage

Ammonia Carbon Dioxide Piping Insulation OSHA / EPA

View James Caylor's Consulting Profile.

Anthony S. Boom is an Electrical Engineer and Escalator Controls Expert Witness with over 35 years in the escalator business. Currently providing expert witness services though Cetek, Inc., he spent the last three decades working as an Electrical Engineer with Montgomery Escalator and KONE R&D, escalator division.

Three patents Mr. Boom received while working at Montgomery and at KONE include one for Safety Switch and Method of Checked Redundancy, utilized in all of the current transit escalator safety circuits; an Apparatus and Method for Variable Torque Braking of Escalator and Moving Walkways; and a Method and Conveyor System for KONE Sleep Mode Controller.

Litigation Support - Mr. Boom offers expert witness services to attorneys representing plaintiff and defense. Services include expert witness testimony, written or oral affidavits, site inspections, technical investigations, technical review documentation, etc. 

Areas of Expertise:

Electrical Engineering Escalators Vertical Transportation Electrical Controls Escalator Control Circuitry Logic Escalator PLC Control Software Program Logic

Escalator Brake Control Escalator Braking Systems Escalator Safety Escalator Safety Circuits Moving Walkways National Electrical Code

Background Experience and Accomplishments:

• Designed and developed many custom escalator electrical controls. He also designed and wrote the code for Montgomery Escalator and KONE escalator controls, including the controls for the Trans 180 escalator platform (the ES373’s model).
• Developed diagnostic guides for escalator controllers and braking systems and technical bulletins for all aspects of the escalator electrical control system.
• Oversaw the CSA certification of the escalator control and brake systems.
• Supervised and trained electrical and mechanical engineers.
• Provided tech support to KONE personnel regarding Otis controls and performed power studies on a variety of Otis escalators. 

Selected Case Experience:

• 2022: Escalator at department store, PA: Alleged injury on escalator.
• 2023: High rise transit escalator, NY: Ongoing.
• 2023: Public transportation escalator, NY: Ongoing.  See CV for Full List

Thomas J. Young, PE, has over 39 years of experience in national and international Transportation Construction, the Civil Engineering specialty regarding highways, bridges, rail, airports, harbors, and associated infrastructure.

Mr. Young is a skilled integrator of the parameters of program and project life cycles, leadership, management, business operations, engineering and construction. He has extensive knowledge of regulatory compliance, environmental processes, industry standards, best practices, and field operations in urban and remote areas.

Mr. Young has broad construction management and design background for many of the knowledge and skill areas required in mining operations, bridges, highways, land development, major soil/structure type facilities, land survey, and construction surveying, including work in Arctic facilities and in desert regions.

Selected Background Experience:

• Completed 34 bridge structure designs, seismic retrofits, and special studies, including large cut and cover tunnels and numerous other complex structures for the $700 million design/build Eastern Transportation Corridor toll roads in Orange County, California
• Bridge construction oversight on $1 billion Cypress Corridor reconstruction in Oakland, California. 
• $10 million Sunrise/Highway 50, and $40-$50 million Douglas/Interstate 80 Interchange and Corridor designs in Sacramento, California.
• Bridge and highway project development duties in Caltrans Districts 1-5, 7, 10-12.

Thomas J. Young: PowerTeam Interview

Litigation Support - Mr. Young can act as an expert witness in all cases related to Forensic Transportation Construction Engineering. A persuasive communicator skilled at negotiating successful outcomes to complex situations, his expertise at analysis, problem solving, and bringing parties together in the public and private sectors is an asset in his performance in forensic engineering and expert witness testimony.

Areas of Expertise:

ADA Violations Architecture Bridges Building Codes Civil Engineering Construction Accidents Construction Claims Construction Defects Construction Failure Analysis Construction Injuries Construction Safety / OSHA Cost Estimating / Overruns Design Codes Design Engineering Drainage Driving Human Factors Engineering Quality Assurance Fall Protection Forensic Engineering Investigation Geotechnical Engineering Highway Engineering

Highway Safety Hydraulics and Drainage Hydrology Industrial Facilities  Land Development Land Surveying Landscape Architecture Management Professional Responsibility Public Works Sewers Signage Strategic Planning Structural Engineering Structural Engineering  Failures Surveys Temporary Structures Traffic Safety Transportation Transportation Construction

View Civ-Tek International's Business Consulting Profile.

Dr. Glenn Prestwich  is a National Academy of Inventors fellow with over 45 years of experience as a professor, entrepreneur, and biotech startup C-suite executive. Dr. Prestwich specializes in Biomedical Intellectual Property. He has been a prolific inventor since 1977, and an expert witness in IP law cases since 2007. He is an inventor on over 95 patents and patent applications, including 48 issued patents.

Litigation Support - Dr. Prestwich brings to all legal and technical cases a deep appreciation for how chemistry informs the invention and development of products that offer solutions to problems in the life sciences and medicine, ranging from disease detection and treatment to tissue healing and regeneration. He’s been involved in intellectual property litigation that concern medical devices, diagnostics, new pharmaceuticals, drug delivery, agrochemicals, and consumer products.

As an expert witness, Dr. Prestwich enjoys the challenges of dissecting the validity (or invalidity) of patents in litigation. He appreciates the subtleties of claim construction and works collaboratively with attorneys to identify successful arguments based on sound science and legal principles. He has drafted over 40 expert reports, declarations, and affidavits in support of his attorney clients.  He has been deposed 18 times and testified in Court four times.

Glenn D. Prestwich on Accessible and Experienced Expert Witnesses

Areas of Expertise:

Organic Synthesis Natural Products Chemistry Medicinal Chemistry Mechanistic Enzymology Agricultural Chemistry Chemical Biology Biochemistry

Intellectual Property Litigation Medical Devices Diagnostics New Pharmaceuticals Drug Delivery Agrochemicals / Pesticides Consumer Products

Publications - Dr. Prestwich is an organized, clear, and effective writer. He has co-authored  over 610 additional peer-reviewed articles in the scientific literature, and written over 50 single-author scientific publications, reviews and book chapters. His publications encompass areas such diverse topics as anti-cancer drugs, gels for wound repair, cell therapy, and regenerative medicine, insect and pest control agents, cholesterol-lowering agents, lipids and cell signaling tools, and anti-inflammatory agents.

Since 2010, Craig Moskowitz, MBA, MS, PE, the President and Managing Member of CLM Engineering Associates, LLC (CLM), has been concentrating the comapny's focus on forensic engineering/expert witness work for the insurance industry and legal community. In addition, they offer construction management, civil engineering and building inspection services. 

CLM has extensive construction management experience on both commercial and residential projects. Projects have included:

•  Safety inspections on both civilian and military projects through application of OSHA regulations. Designed drainage systems for the government while an officer with the United States military. Cost estimating for various projects exceeding $500 million<li>
• Designed document creation and management of high-rise construction in Manhattan
• Management of telecommunications projects for Verizon in Manhattan including CPM schedule creation and updating
• Directed and managed all water distribution system and sewer system work while working as a contractor to the New York City Department of Design and Construction. 
• Marketplace Services

Litigation Support - Forensic work related to evaluation of structural steel systems with commercial building construction and insurance-related claims due to storm damage on commercial and residential structures. Craig Moskowitz has been deposed several times in litigation matters. Mr. Moskowitz has testified 17 times in the past four years. 

View Craig Moskowitz's Consulting Profile.

Michael A. Pollock, PE, USPTO, is a Mechanical Engineer responsible for the design and engineering of commercial, industrial, manufacturing, institutional, and residential venues, as well as efforts relating to services and products used in and around these facilities. Mr. Pollock's full CV can be viewed at cogentexpert.com.

Business and industries include electronics, safety and construction, building materials, polymers and plastics, instrumentation manufacturing, petrochemicals, chemicals, pharmaceuticals, colleges, athletic facilities, textiles, coatings and resins, food storage, biosciences, supermarkets, inks & pigments, automotive, facility and real estate operations, agricultural, transportation, nuclear, healthcare, nutrition, retail, distributors, pulp and paper, packaging, utilities, apparel, and R&D centers.

Litigation Support - Mr. Pollock is a subject matter expert in Commercial and Industrial Engineering Applications and Projects, as well as engineering standards and applicable codes (ASHRAE, ASME, NIST, NFPA, NBIC, ASTM, SAE, LEED, ASCE, GMP, ISA, BOCA, and EPA Regulations.) He has engaged with local, state, and governmental officials and agencies regarding numerous matters over his commensurate years of experience.

Areas of Expertise:

Investment Engineering Economics Mechanical Engineering Standard of Care Architectural Standard of Care Construction Delay Construction Defect Construction Schedule Analysis Accident Analysis Metallurgical Failure Rotating Equipment Electrical Failure Chemical Failure Processes Instrumentation and Controls

Chillers Coatings Refrigeration Thermodynamics Water Treatment Steam Systems and Boilers   Power and Utilities Energy Conservation Environmental Impact Safety HVAC Project Management Product Development

Registrations

• Professional Engineer: PA (PE075410)
• American Bar Association (ABA) – Construction Forum
• Environmental Protection Agency (EPA) Clean Air Act Certification – Universal (includes Chillers, HVAC & Refrigeration)
• United States Patent & Trademark Office Registered (USPTO)                              

Forensic Consulting Experience

Warehouse Distribution Facility – Maryland - Evaluated a $10M (million) claim relating to purported construction defect claims by the 600,000 sq. ft. facility owner against the facility construction contractor and an original equipment manufacturer relating to installed infrastructure in the facility. Developed an expert opinion and expert report regarding the analysis of the purported defects and a proposed repair solution to correct said defects. 

 Psychiatric Hospital Facility – North Carolina – Evaluated a $28M (million) construction claim by the general contractor against a hospital facility concerning a $100M facility construction project.  Developed an expert opinion and report for general construction issues, constructability, design revisions, and corresponding delay analysis for mechanical, HVAC, electrical, smoke and fire, structural, security and building automation systems. 

Forensics Consulting Work-in-Progress 

• 2022 – International Trade Commission (ITC) Matter – Resin Manufacturing Facility Construction Delay / Completeness Analysis
• 2022 – Mechanical Systems Coatings Matter Analysis
• 2021 – Industrial Manufacturing Facility Standard of Care Matter, Construction Defect, Construction Delay     
• 2021 – Electrical Distribution System Construction Defect Matter, Standard of Care
• 2021 – Hotel Facility HVAC Materials of Construction Related Defect Matter

Sanford C. Loy , CCM, B.Arch, MSCE, has over 40 years of experience in the Construction Industry. Mr. Loy has Degrees in Architecture and Engineering. A Certified Construction Manager (CCM), he is committed to the Code of Ethics and Standards of Professional Practice established by the Construction Management Association of America. CCM is the ANSI accredited professional designation for construction management and is the gold standard for CM service providers in over 145 countries.

Background Experience - Mr. Loy's experience spans virtually every type of building and design process. His strength centers on his understanding of the dynamics and interactions of the various trades and professions unique to every building project. He has experience with Construction Management at Risk, Construction Management Agency, Design-build, and Design-bid-build. Having successfully managed the completion of over one billion dollars of construction, Mr. Loy served as a Regional Engineer for the American Institute of Steel Construction and as Director of Construction and Development for Belz Enterprises, the largest development company in Tennessee, before founding Construction Strategies in 1988.

Litigation Support - Mr. Loy provides Construction Claim and Dispute Analysis services, with special expertise in Concrete Design and Design-Build. Having been a teacher of many of the principles and processes used in the industry he knows how to explain the difficult technical aspects of the information and analysis in a way which makes the facts understandable and believable to opposing counsel, insurance companies, judges, and juries. Mr. Loy has experience and provides assistance with various dispute resolution approaches, such as Owner / Contractor dispute resolution boards, arbitration, mediation, and provides expert witness testimony if necessary.

See services offered at https://www.construction-strategies.com/what-we-do 

View Sanford Loy's Consulting Profile.

Dr. Shaun Anthony Crawford, CIH, has a diverse 30+ year background in environmental health, safety and industrial hygiene consulting and litigation support, spanning government, industry, academics, residential and non-profit sectors. He holds a MSPH in Environmental Engineering / Industrial Hygiene and a Doctorate in Environmental Health Sciences with a specialization in industrial hygiene, both from the University of Alabama at Birmingham.

Dr. Crawford has held academic positions in Environmental Management, Urban Environmental Studies, and Environmental Health at three universities. He has a very successful business and litigation track record and is available for both plaintiff and defense representation.

Vapor Emissions from Building Materials Mold Contamination and Remediation Metals and Bacteria in Wastewater Construction Runoff and Sedimentation Pipeline Rupture

Superfund Communities Industrial Contamination PCBs AFFF / PFCs Aerosol Exposure and Lung Damage

For additional information, please consult Dr. Crawford's resume.

Dean Tekell Consulting provides expertise in the areas of Traffic Engineering, Parking, Public Transit, Vehicle Dynamics, Accident Reconstruction, and Technical Accident Investigation.

Often, government agencies, consulting engineers, architects, developers, business institutions, and attorneys must know how to move people and their goods safely and efficiently. The firm offers advice on site selection, traffic access, and traffic circulation on the site. The firm provides insight into potential problems with zoning and subdivision regulations. Traffic impact studies, traffic signal warrant analysis, traffic signal design and permitting services related to development activity are also available through the firm. Parking garage and parking lot operations are specialties offered to business institutions.

Other services include: Queuing Studies for drive-through services; Traffic Calming and neighborhood speed control; School trip and pedestrian safety plans; Traffic Accident Reduction and highway safety techniques; Transit Funding Operation; Intelligent Vehicle-Highway Systems.

Edward S. George PE, has over 30 years of experience in the field of Product Liability and Failure Analysis.

Mr. George earned his BS and MS degrees from the University of Florida Department of Materials Science and Engineering, graduating with a specialty in metallurgy. He is a licensed professional engineer in the State of Florida. Mr. George is a member of The National Society of Professional Engineers, The American Welding Society, The National Association of Forensic Engineers, The Florida Engineering Society, American Water Works Association, and The International Society for Fall Protection.

Mr. George has experience in a variety of material failures including Metals, Polymers, Plastics, Composites, Ceramics, Glass, and Porcelain.

Litigation Support - A court-qualified expert, Mr. George has over 13 years of experience and has testified in depositions and trials. His forensic training is complemented by his industrial experience including:

• Heat Treating of Metals
• Welding and Joining of Materials
• Materials Testing and Evaluation
• Quality Control and Assurance
• Optical and Scanning Electron Microscopic Techniques
• Destructive and Non-destructive Physical Testing
• Laboratory Equipment and Procedures

View Edward George's Consulting Profile.

Paul Eason is a Licensed Professional Engineer, Nationally Certified Fire & Explosion Investigator and Forensic Consultant. His expertise comes from a strong background in industry and academia. In addition to his consulting practice, he is a professor in the School of Engineering at the University of North Florida, and maintains a graduate faculty appointment in the Materials Science and Engineering Program at the University of Florida. 

Dr. Eason has testified in numerous trials and depositions in the following practice areas: 

Product Design & Manufacturing Analysis - Metallurgy & Materials - Fire & Explosions - Industrial Accidents 

Areas of Expertise: Product Liability and Materials Failure Analysis, Product Defect & Safety Issues including: Metals, Plastics, Glass, Ceramics, Corrosion, Fatigue, Overload & Material Selection 

Fire and Explosion Analysis including: cause and origin determination, product related fire causation, industrial process accidents, dust explosions, welding / brazing accidents

Arun Kumar, Ph.D. has 34 years of experience in Metallurgy, Materials Science and Failure Analysis of Metallic and Non-Metallic Materials at Rockwell International, Hughes Aircraft Company and EAG Laboratories. He manages and supervises approximately 17 engineers and technicians performing a variety of analytical services and failure analysis. Dr. Kumar provides metallurgical consultation, performs failure analysis and serves as an expert witness in product liability trials involving materials failures. He has extensive experience in metallurgical failure analysis of aircraft, helicopter, automobile and motorcycle components, machineries, medical implants, machine tools and household appliances.

H. Landis “Lanny” Floyd II, PE, CSP, CMRP, CRL, CESCP, Life Fellow IEEE, has over 45 years of experience in Electrical Safety in the Workplace. His work has advanced the application of Human Factors Engineering, Electrical Technology, and Safety Management Systems in preventing occupational electrical injuries. Mr. Floyd retired from DuPont in 2014, holding the positions of Principal Consultant - Electrical Safety & Technology, and Global Electrical Safety Competency Leader. 

Click here for my current CV

Background Experience - For the past 35 years, Mr. Floyd focused on electrical safety in the construction, operation, and maintenance of industrial and commercial facilities worldwide for DuPont. This included safety management systems, competency renewal, work practices, and the application of technologies critical to electrical safety performance. From 1992 to 2014, he led the team that designed and facilitated implementation of a strategy for continuous and sustainable improvement in occupational electrical safety for DuPont Global Operations. This work enabled breakthrough performance in prevention of serious injuries and fatalities from electrical energy in DuPont facilities worldwide. In 2013, Mr. Floyd was invited to join the faculty at the University of Alabama at Birmingham, where he teaches in the Advanced Safety Engineering and Management Master of Engineering degree program. 

Litigation Support - Mr. Floyd has been providing expert witness services and litigation support for over 10 years. His expertise is available to counsel representing both plaintiff and defendant. Mr. Floyd's services include consulting, site inspections, testing, reports, depositions, and trial testimony when necessary. 

Areas of Expertise:

Workplace Electrical Safety Electrical Shock Arc Flash Electrical Safety Management Systems Electrical Codes and Standards NFPA70E & National Electrical Safety Code National Electrical Code Electrical Testing Instruments

Electrical Injury Electrocution Electrical Reliability Electrical Maintenance Electrical Construction Occupational Electrical Safety Electric Power Systems Overhead Power Lines

View Lanny Floyd's Consulting Profile.